CN105277158B - The friction quantity measuring method and its friction amount determining device of breaker - Google Patents
The friction quantity measuring method and its friction amount determining device of breaker Download PDFInfo
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- CN105277158B CN105277158B CN201510372844.3A CN201510372844A CN105277158B CN 105277158 B CN105277158 B CN 105277158B CN 201510372844 A CN201510372844 A CN 201510372844A CN 105277158 B CN105277158 B CN 105277158B
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Abstract
The friction quantity measuring method and its friction amount determining device of breaker, even the structure of amount of friction can not be determined directly, also can determine amount of friction without using large-scale and special determining instrument.The friction quantity measuring method of the breaker of the present invention, operation is being driven by operation device to make the travelling contact in the breaking portion for the travelling contact and fixed contact for possessing relative configuration be opened and closed relative to fixed contact, and the driving operation of operation device is passed in the breaker in breaking portion via linkage, when measuring setting is between linkage and breaking portion, when amount of friction of the travelling contact to the friction spring of the contact of fixed contact is provided, travelling contact is set to be moved to contact position from open position after breaking portion is set into off state, precalculated position when this is moved is set to a reference value, the distance that the further displacement of friction spring will be made and connect when keeping is set to haul distance, measure subtracts amount of friction of the value obtained by a reference value as friction spring from haul distance.
Description
Technical field
The present invention relates to a kind of friction quantity measuring method of breaker and its friction amount determining device, more particularly to one kind to be
Make constructively can not directly to determine breaker also appropriate in the case of the amount of friction of breaker friction quantity measuring method and
Its amount determining device that rubs.
Background technology
The known electromagnetic force using electromagnetic operating device is opened and closed to be opened and closed the Electromagnetically-operating formula of the breakers such as vacuum circuit breaker
Device.Following structure is used in the Electromagnetically-operating formula opening and closing device, i.e.,：It will be put aside for the energy of DM in electricity
In container, according to the energy production electromagnetic force of savings in the capacitor, the driving with the electromagnetic force is transmitted via linkage
Power, vacuum circuit breaker is set to carry out ON Action.
In addition, following mechanism is employed, i.e.,：Cut-out spring is compressed when connecting to put aside energy in cut-out spring,
The electric current for flowing through opposite direction during with connecting during disconnection in magnet spool to produce the electromagnetism of opposite direction from electromagnet
Power, using the electromagnetic force with putting aside the spring force in cut-out spring as the driving force with opposite direction during connection, there is provided to even
Linkage vacuum circuit breaker is opened and closed operation.
However, because vacuum circuit breaker is the device under harsh environment using more than 20 years, therefore pass through for a long time
Using repeating vacuum breaker opening and closing when, to travelling contact provide contact friction spring amount of friction reduce.
In the case that the amount of friction deviates predetermined amount of friction, between predetermined contact can not being supplied into contact, contact resistance increases
Greatly, the heating as caused by energization becomes big and may cause accident.In order to by accident prevention in possible trouble, it is necessary to results of regular determination and adjust
Amount of friction.
As the prior art for determining the amount of friction in such vacuum circuit breaker, have described in patent document 1
Technology.Following technology is recorded in the patent document 1, i.e.,：The rotation of the drive shaft of servo-actuated vacuum circuit breaker, resistance are set
The slide rheostat of value changes, output it change and be shown in circuit breaker contact point together with the non-conduction change to conducting and shown
On ripple device, amount of friction is thus determined.
However, in conventional amount of friction measure, it is desirable in the case of determining amount of friction in the maintenance of vacuum circuit breaker,
It is generally necessary to which vacuum circuit breaker is positioned on pallet, removes positive mask and make it possible to determine operator stroke, or make it possible to
It is enough to determine operator stroke or breaking portion's stroke from bottom surface, amount of friction is determined in this condition, but in the measure to the amount of friction
Portion further carried out it is modular in the case of, can not directly determine amount of friction.In addition, in above-mentioned patent document 1, it is used for
The determining instrument maximization of amount of friction is determined, and needs specific apparatus.
Patent document 1：Japanese Unexamined Patent Publication 6-331675 publications
The content of the invention
The present invention is to propose in view of the above problems, even can not directly determine friction the purpose is to provide one kind
The structure of amount, the friction quantity measuring method for the breaker that also can determine amount of friction without using large-scale and special determining instrument
And its friction amount determining device.
To achieve these goals, in the friction quantity measuring method of breaker of the invention, the breaker is to make to possess
The travelling contact of relative configuration and the travelling contact in the breaking portion of fixed contact are opened and closed and led to relative to the fixed contact
Cross operation device and be driven operation, and the driving operation of the operation device is passed into the open circuit via linkage
Portion, in the friction quantity measuring method of the breaker, when measuring setting is between the linkage and the breaking portion, there is provided institute
State amount of friction from travelling contact to the friction spring of the contact of the fixed contact when, by the breaking portion be set to open circuit
After state, the travelling contact is set to be moved to contact position from open position, precalculated position when this is moved is set to a reference value,
The distance that the friction spring will be made further to be subjected to displacement and connect when keeping is set to haul distance, determines from the row
Cheng Changdu subtracts value obtained by a reference value, the amount of friction as friction spring.
Specifically, after the breaking portion being set into off state, operation device described in fixture operation is manually connected,
It is described by being passed to by the driving force of the operation device of the manual ON fixture operation via the linkage and insulating bar
Friction spring, the travelling contact is thus set to be moved to contact position from open position and turn into what is contacted with the fixed contact
Conducting state, by as the chassis bottom surface for being equipped with the breaker at the time point of the conducting state and the insulating bar away from
From being set to a reference value D1, and the manual ON fixture will be operated from the state makes the friction spring be subjected to displacement and institute
State chassis bottom surface when friction spring tightens and the distance of the insulating bar is set to haul distance D2, determine the D2-D1
Amount of friction as friction spring.
In addition, to achieve these goals, the friction amount determining device of breaker of the invention possesses：Breaking portion, it has
There are the travelling contact and fixed contact of relative configuration；Operation device, it is the travelling contact for making the breaking portion relative to described solid
Fixed juncture is opened and closed and is driven operation；Linkage, the driving operation of the operation device is passed to the breaking portion by it；With
And friction spring, it is arranged between the linkage and the breaking portion, there is provided the travelling contact connects to the fixation
The contact of point, have and be set to the breaking portion to make the travelling contact be moved to contact from open position after off state
The manual ON fixture of position, the travelling contact will be moved to by contact position from open position by the manual ON fixture
When precalculated position be set to a reference value, the friction spring will be made further to be subjected to displacement and carry out connect keep when distance set
For haul distance, determine from the haul distance and subtract value obtained by a reference value, the amount of friction as friction spring.
Specifically, by by the driving force of the operation device of the manual ON fixture operation via the connecting rod
Mechanism and insulating bar pass to the friction spring, the travelling contact is moved to contact position from open position and form
For the conducting state contacted with the fixed contact, by as the platform for being equipped with the breaker at the time point of the conducting state
The distance of underbody face and the insulating bar is set to a reference value D1, and the manual ON fixture will be operated from the state and make institute
Friction spring is stated to be subjected to displacement and the chassis bottom surface and the distance of the insulating bar when friction spring tightens are set to capable
Cheng Changdu D2, determine amount of friction of the D2-D1 as friction spring.
According to the present invention, even with the structure that can not directly determine amount of friction, also can be without using large-scale and special
Determining instrument and determine the effect of amount of friction.
Brief description of the drawings
Fig. 1 is the figure of the vacuum circuit breaker for the embodiment 1 for representing the friction amount determining device using the breaker of the present invention.
Fig. 2 is the profile for representing the details near Fig. 1 insulating bar.
Fig. 3 is the Electromagnetically-operating dress of the embodiment 2 for the friction quantity measuring method for representing the breaker for illustrating the present invention
Put the figure of 6 part.
Symbol description
1 movable core, 2 secured cores, 3 coils, 4 housings, 4a housings front top plate portion, 5 electromagnet, 6 Electromagnetically-operatings dress
Put, 7 travelling contacts, 8 fixed contacts, 9 movable rods, 9A lower movables bar, 9B central movables bar, 9C upper movables bar, 10 bars,
10a operators side lever, 10b open circuits portion side lever, 10c axles, 11 insulating bars, 11a metals bar, 12 linkages, 12a, 12b are movable
Pin, 13 breaking portions, 14 vacuum valves, the movable flat board of 15A, 15B, 16 permanent magnets, 17,18 covers, 19,21,23 support plates, 20 are fixed
Bar, 22 bobbins, 24 pedestals, 25 cut-out springs, 26 flexible conductors, 27 can moving-conductor, 28 fixed conductors, 29 movable feeds
Feed lines, contactor on 31,32 times contactors, 33 mobile trolley used, 34 friction springs, 35 insulants, 36A, 36B are fixed in line, 30
Connecting line, 37 buzzing verifiers, 38 continuous-current plants, 39 connection metal parts, 40 locking nuts, 41 spring shims, 42 spiral shells
Mother, 51 bolts, 52 fixed plates, 100 vacuum circuit breakers.
Embodiment
Hereinafter, the embodiment based on diagram, friction quantity measuring method and its amount of friction to the breaker of the present invention determine
Device illustrates.
[embodiment 1]
Fig. 1 and Fig. 2 represents the vacuum circuit breaker of the embodiment 1 of the friction amount determining device of the breaker of the application present invention
Structure.
As shown in figure 1, the vacuum circuit breaker 100 of the embodiment 1 of the friction amount determining device of the breaker of the application present invention
Using the open circuit of fault current and recover as major function, be substantially made up of such as lower part：Electromagnetic operating device 6, it has phase
Movable core 1 and secured core 2 to configuration and movable core 1 made according to electromagnetic force and secured core 2 is separated or contacted
In the electromagnet 5 of the central lower of housing 4, control, output carry out the on-off action in breaking portion 13 described later for coil 3, configuration
Operating physical force；Breaking portion 13, with the driving force from electromagnetic force caused by electromagnet 5 via the movable of composition electromagnetic operating device 6
The linkage 12 that bar 9, bar 10 and insulating bar 11 are formed, make the travelling contact of relative configuration being arranged in vacuum valve 14
7 separate or contact with fixed contact 8, make current interruption or connection；And mobile trolley used 33, it carries the vacuum of said structure and broken
Road device 100 inserts to disk, in order to by the status adjustment of vacuum circuit breaker 100 into on-position/open position/off position and
It can move.
Breaking portion 13 and electromagnetic operating device 6 carry out linear motion up and down together, by determining the side of electromagnetic operating device 6
Linearly operating can carry out the measure of the linearly operating in breaking portion 13.
In addition, the movable rod 9 of electromagnetic operating device 6 by be connected by movable pin 12a with bar 10 lower movable bar 9A, with
The central movable bar 9B of lower movable bar 9A pin connections, the upper movable bar 9C being connected with central movable bar 9B are formed, by electromagnetism
The motion of the movable rod 9 (lower movable bar 9A, central movable bar 9B, upper movable bar 9C) of operation device 6 is via linkage
12 bar 10, insulating bar 11 pass to breaking portion 13.
Above-mentioned bar 10 is connected, in breaking portion using axle 10c as main shaft in the side of electromagnetic operating device 6 with operator side lever 10a
13 sides and it is connected with the substantially opposite sides of operator side lever 10a with breaking portion's side lever 10b.Also, bar 10 and movable rod 9 are by can
The bottom of movable rod 9 is connected by dynamic pin 12a with operator side lever 10a leading section, and bar 10 passes through movable pin 12b with breaking portion 13
Breaking portion's side lever 10b breaking portion side front end is connected with the bolt portion of insulating bar 11.Breaking portion's side lever 10b is via movable pin
12b be connected metal parts 39 be rotatably supported, also, for connect metal parts 39, in openings (not shown) with
Be axially inserted into the metal bar 11a of insulating bar 11, screw thread be provided with metal bar 11a, by with its screw togather for example by
Locking nut 40 that double nut with wedge core shift nut and with keyway nut is formed and across spring shim 41 nut 42 from upper
Under be clamped and connected metal parts 39 to connect.
In addition, electromagnet 5 possess the movable flat board 15A, 15B of movable core 1, secured core 2, coil 3, movable rod 9,2,
Permanent magnet 16, the cover made of iron 17 formed with tubular, 18, iron support plate 19,21, fix bar 20 etc. and formed, coil 3 is received
It is contained in the bobbin 22 being configured between support plate 21 and support plate 19.
In order to maintain to connect hold mode, in movable flat board 15A, 15B bottom and the top of permanent magnet 16, in movable rod
It ensure that the position of minim gap sets above-mentioned electromagnet 5 beyond 9 haul distance.In addition, for electromagnet 5, in center
I.e. on support plate 21, the permanent magnet 16 of ring flat-plate shape is magnetized and connected square plate with the hole penetrated by movable rod 9.
In addition, secured core 2 is the part of ring flat-plate shape, during connection, in order to not make movable flat board 15A, 15B directly contact electricity
Magnet 5, the lower section of movable rod 9 is acted the bottom of opposite movable core 1, be supported in its upper surface, play the effect of stopper
Fruit.
In addition, coil 3 is the structure that electric wire is wound with to bobbin 22, in the bottom of electromagnet 5 to insertion bobbin hole
Direction be provided with movable rod 9.The coil 3 makes the direction of electric current flowing change, and makes magnetic direction caused by coil 3 and electricity
Magnetic direction caused by magnet 5 is identical or on the contrary, thus, it is possible to strengthen or weaken magnetic field caused by electromagnet 5.
In addition, being provided with size 2 movable flat board 15A, 15B on central movable bar 9B, this is to increase top
Movable flat board 15A and the opposed distance of iron cover 17, reduce the leakage magnetic flux to iron cover 17.Also, in central movable bar 9B
Lower side be connected to support plate 23, be mounted between support plate 23 and pedestal 24 describe using central movable bar 9B axle center as
The cut-out spring 25 of the ring-type of the circle at center.
The cut-out spring 25 will be given to for the elastic force that movable core 1 is separated from secured core 2 via support plate 23
Central movable bar 9B, in order to be saved up strength under the on-state of vacuum circuit breaker 100, and pulls open movable rod 9 in open circuit, quilt upwards
Configuration is in the lower section of movable rod 9.In addition, being configured with permanent magnet 16 around movable core 1, permanent magnet 16 is fixed on support
On plate 21.Secured core 2 is fixed on support plate 19 using bolt, nut.
In addition, as shown in Fig. 2 metal bar 11a is covered by insulant 35 and is formed insulating bar 11, in the insulant 35
Inside, which encloses, assigns friction spring 34 of the travelling contact 7 to the predetermined contact of fixed contact 8.
On the other hand, the upper side of insulating bar 11 is connected via flexible conductor 26 with movable feed line 29, and with open circuit
Portion 13 can moving-conductor 27 connect.Can moving-conductor 27 be connected with the travelling contact 7 in breaking portion 13, with the travelling contact 7 relatively
It is configured with fixed contact 8.The fixed contact 8 is connected with fixed conductor 28.They are accommodated in into composition together with travelling contact 7 to break
In the vacuum valve 14 in road portion 13, vacuum is kept in the vacuum valve 14.
In addition, fixed conductor 28 is connected with fixed feed line 30, the contactor (main circuit in connection on fixed feed line 30
Conductor) 31, contactor (main circuit conductor) 32 under being connected on movable feed line 29, each contactor (main circuit conductor) 31,32
It is connected with power cables such as distribution wires.
Also, in the present embodiment, in the vacuum circuit breaker 100 of said structure, in order to determine rubbing for friction spring 34
Wiping amount, possess and be set to breaking portion 13 to make travelling contact 7 be moved to connecing manually for contact position from open position after off state
Logical fixture.
The manual ON fixture, it is pressed into downwards with bolt 51 by the upper movable bar 9C of movable rod 9 top front end
Position, will be fixed on the inner side of top plate portion 4a in front of housing with screw etc. for the fixed plate 52 of installation bolt 51, and from shell
Top plate portion 4a top is mounted with bolt 51 in fixed plate 52 in front of body.
In addition, in the present embodiment, upper contactor (main circuit conductor) 31 and lower contactor (main circuit conductor) 32 are respective
Via connecting line 36A, 36B with notice travelling contact 7 contact with fixed contact 8 and turn into conducting state buzzing verifier 37 and
Its continuous-current plant 38 connects.
Then, the assay method of the amount of friction of the friction spring 34 in said structure is illustrated.
First, vacuum circuit breaker 100 is set to off state, bolt 51 is adjusted to the upper movable bar with movable rod 9
9C is contacted.Then, the power supply of continuous-current plant 38 is connected, swivel bolt 51 presses movable rod 9, thus, drives it power
Breaking portion 13 is passed to via linkage 12, insulating bar 11, is moved to travelling contact 7 with the contact condition that fixed contact 8 contacts
Move.If travelling contact 7 contacts with fixed contact 8 and turns into conducting state, the ring of buzzing verifier 37, then stop the rotation of bolt 51
Turn.Now, vacuum valve 14 built-in in the breaking portion 13 for be provided with buzzing verifier 37 turns into contact point (reference position).
In this condition, determined using depth gauge etc. from mobile trolley used 33 bottom surface sections to the distance of insulating bar 11, and will
It is set to a reference value D1.Identical operation is mutually also carried out to other, determines the distance D1 of contact point.Also, during swivel bolt 51,
The attraction of permanent magnet 16 exceedes the power of friction spring 34 and cut-out spring 25, and electromagnetic operating device 6 automatically becomes connection shape
State.In this condition, reuse depth gauge etc. measure from mobile trolley used 33 bottom surface sections to the distance of insulating bar 11, and by its
It is set to haul distance D2.
Difference=the D2-D1 for the distance that obtained each phase is acted by above-mentioned dimension measurement is calculated, is rubbed thus, it is possible to calculate
Wiping amount (size).
I.e., in the present embodiment, after breaking portion 13 is turned into off state, electromagnetic operating device 6 is operated by bolt 51
Movable rod 9, the driving force of the electromagnetic operating device 6 operated by the bolt 51 is passed via linkage 12 and insulating bar 11
Friction spring 34 is passed, travelling contact 7 is moved to contact position from open position, contacts and turns into fixed contact 8
Conducting state, the distance as mobile trolley used 33 bottom surface at the time of the conducting state and insulating bar 11 is set to a reference value
D1, and it is subjected to displacement friction spring 34 from state operation bolt 51, it is mobile trolley used when the friction spring 34 is tightened
33 bottom surface is set to haul distance D2 with the distance of insulating bar 11, and the D2-D1 is determined as to the amount of friction of friction spring.
According to such the present embodiment, even in can not directly determine friction bullet by the mechanism part with friction spring 34
In the case of the amount of friction of spring 34, also amount of friction can be calculated according to the measure in replacement portion and the difference of displacement.
As shown above, according to the present embodiment, even the structure of amount of friction can not be determined directly, also obtain without using big
Type and special determining instrument and the effect of amount of friction can be determined.
[embodiment 2]
The Electromagnetically-operating of the embodiment 2 of the friction quantity measuring method of the breaker for illustrating the present invention is represented in figure 3
A part for device 6.
As described in Example 1, the present embodiment is can not to determine the insulating bar 11 positioned at the lower section in breaking portion 13
Alternatives in the case of displacement.Therefore, structure is identical with the above embodiments 1, so as in this description will be omitted.
In the present embodiment shown in Fig. 3, the bolt 51 and movable rod 9 of the movable rod 9 of electromagnetic operating device 6 will be operated
Top plate portion 4a distance is set to L1 in front of top front end to the housing of bolt 51 in the state of upper movable bar 9C contacts, rotates
Bolt 51, the head of the bolt 51 is dropped to the front from the top front end of bolt 51 to housing during top plate portion 4a in front of housing
Top plate portion 4a distance is set to L2, also, when the drive rod ratio of linkage 12 is a, a (L1-L2) is determined as into friction bullet
The amount of friction of spring.
Thus, it is vacuum circuit breaker 100 (removing positive mask etc.) without friction measure object of disintegrating, is surveyed without using special
Determine pallet, also can determine amount of friction from the body upper part of vacuum circuit breaker 100, enable in particular to be greatly shortened rubbing when safeguarding
Wipe minute.
Even such the present embodiment, its effect is also same as Example 1.
In addition, the invention is not limited in the above embodiments, in addition to various modifications example.For example, the above embodiments
It is the detailed description for the ease of understanding the present invention and carrying out, is not limited to all structures that must possess explanation.Can be right
A part for the structure of embodiment carries out addition, deletion, the displacement of structure.
Claims (14)
- A kind of 1. friction quantity measuring method of breaker, it is characterised in thatThe breaker is that the travelling contact in the breaking portion for making the travelling contact and fixed contact for possessing relative configuration is relative It is opened and closed in the fixed contact and operation is driven by operation device, and via linkage by the drive of the operation device Dynamic operation passes to the breaking portion,In the friction quantity measuring method of the breaker, when measuring setting is between the linkage and the breaking portion, carry For amount of friction from the travelling contact to the friction spring of the contact of the fixed contact when, be set to by the breaking portion After off state, the travelling contact is set to be moved to contact position from open position, precalculated position when this is moved is set to base Quasi- value, the friction spring will be made further to be subjected to displacement and carry out connect keep when distance be set to haul distance, determine from The haul distance subtracts value obtained by a reference value, the amount of friction as friction spring.
- 2. the friction quantity measuring method of breaker according to claim 1, it is characterised in thatAfter the breaking portion is set into off state, manually operation device described in connection fixture operation, will pass through the hand The driving force of the dynamic operation device for connecting fixture operation passes to the friction spring via the linkage and insulating bar, by This makes the travelling contact be moved to contact position from open position and turn into the conducting state contacted with the fixed contact, will Benchmark is set to as the chassis bottom surface for being equipped with the breaker at time point and the distance of the insulating bar of the conducting state Value D1, and the manual ON fixture will be operated from the state to make the friction spring be subjected to displacement and the friction bullet Chassis bottom surface when spring tightens and the distance of the insulating bar are set to haul distance D2, determine the D2-D1, as rubbing Wipe the amount of friction of spring.
- 3. the friction quantity measuring method of breaker according to claim 2, it is characterised in thatThe manual ON fixture is bolt, and by rotating the bolt, the movable rod for pressing the operation device is described to operate Operation device.
- 4. the friction quantity measuring method of breaker according to claim 3, it is characterised in thatHole is threaded in the cover top plate portion of the operation device of the position relative with the movable rod of the operation device, is led to Cross in the screwed hole and insert the bolt and rotate, press the movable rod of the operation device to operate the operation device.
- 5. the friction quantity measuring method of the breaker according to claim 3 or 4, it is characterised in thatThe breaker possesses for notifying the travelling contact to be contacted with the fixed contact and examined as the buzzing of conducting state Device is tested, the position of the buzzing verifier ring is set to a reference value D1.
- 6. the friction quantity measuring method of breaker according to claim 5, it is characterised in thatStop the rotation the bolt when the buzzing verifier ring.
- 7. the friction quantity measuring method of breaker according to claim 1, it is characterised in thatIn the state of the bolt for operating the operation device is contacted with the movable rod of the operation device from the bolt The distance in top front end to the cover top plate portion of the operation device is set to L1, and the head that will rotate the bolt and the bolt Subordinate is down to the housing from the top front end of the bolt to the operation device during cover top plate portion of the operation device The distance of top plate portion is set to L2, also, when the drive rod ratio of the linkage is a, measure a (L1-L2) is as friction bullet The amount of friction of spring.
- 8. the friction quantity measuring method of breaker according to claim 7, it is characterised in thatHole is threaded in the cover top plate portion of the operation device of the position relative with the movable rod of the operation device, is led to Cross in the screwed hole and insert the bolt and rotate, press the movable rod of the operation device to operate the operation device.
- A kind of 9. friction amount determining device of breaker, it is characterised in thatPossess：Breaking portion, it has the travelling contact and fixed contact of relative configuration；Operation device, it is to make the breaking portion Travelling contact is opened and closed relative to the fixed contact and is driven operation；Linkage, it grasps the driving of the operation device Pass to the breaking portion；And friction spring, it is arranged between the linkage and the breaking portion, there is provided described Travelling contact has to the contact of the fixed contact and is set to make the travelling contact after off state by the breaking portion The manual ON fixture of contact position is moved to from open position, will by the manual ON fixture by the travelling contact from disconnected Precalculated position when open position is moved to contact position is set to a reference value, and the friction spring will be made further to be subjected to displacement and enter The distance that row connects when keeping is set to haul distance, determines from the haul distance and subtracts value obtained by a reference value, as The amount of friction of friction spring.
- 10. the friction amount determining device of breaker according to claim 9, it is characterised in thatBy by the driving force of the operation device of the manual ON fixture operation via the linkage and insulating bar The friction spring is passed to, the travelling contact is moved to contact position from open position and is turned into and the fixation The conducting state of contacts, by as the chassis bottom surface for being equipped with the breaker at the time point of the conducting state with it is described The distance of insulating bar is set to a reference value D1, and the manual ON fixture will be operated from the state to make the friction spring It is subjected to displacement and the chassis bottom surface of friction spring when tightening and the distance of the insulating bar are set to haul distance D2, surveys The fixed D2-D1, the amount of friction as friction spring.
- 11. the friction amount determining device of breaker according to claim 10, it is characterised in thatThe manual ON fixture is bolt, and by rotating the bolt, the movable rod for pressing the operation device is described to operate Operation device.
- 12. the friction amount determining device of breaker according to claim 11, it is characterised in thatHole is threaded in the cover top plate portion of the operation device of the position relative with the movable rod of the operation device, is led to Cross in the screwed hole and insert the bolt and rotate, press the movable rod of the operation device to operate the operation device.
- 13. the friction amount determining device of the breaker according to any one of claim 10 to 12, it is characterised in thatPossess for notifying the travelling contact to be contacted with the fixed contact and as the buzzing verifier of conducting state, by this The position of buzzing verifier ring is set to a reference value D1.
- 14. the friction amount determining device of breaker according to claim 13, it is characterised in thatThe standby supply unit for setting itself to on-state of the buzzing testing instruments, and via connecting line and the breaker Main circuit conductor connection.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014147467A JP6307373B2 (en) | 2014-07-18 | 2014-07-18 | Circuit breaker wipe amount measuring method and wipe amount measuring device |
| JP2014-147467 | 2014-07-18 |
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| Publication Number | Publication Date |
|---|---|
| CN105277158A CN105277158A (en) | 2016-01-27 |
| CN105277158B true CN105277158B (en) | 2017-11-24 |
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| CN201510372844.3A Active CN105277158B (en) | 2014-07-18 | 2015-06-30 | The friction quantity measuring method and its friction amount determining device of breaker |
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| Country | Link |
|---|---|
| JP (1) | JP6307373B2 (en) |
| CN (1) | CN105277158B (en) |
| TW (1) | TWI606476B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10180102B2 (en) | 2016-02-12 | 2019-01-15 | Mazda Motor Corporation | Intake air cooling device for engine |
| CN111952113B (en) * | 2020-06-23 | 2022-05-31 | 祥兴电气有限公司 | Vacuum circuit breaker on post |
| CN115274346B (en) * | 2022-08-25 | 2023-04-18 | 南京开关厂股份有限公司 | Quick breaking type vacuum circuit breaker based on ejection technology |
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- 2015-07-13 TW TW104122544A patent/TWI606476B/en active
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Also Published As
| Publication number | Publication date |
|---|---|
| CN105277158A (en) | 2016-01-27 |
| JP6307373B2 (en) | 2018-04-04 |
| JP2016024927A (en) | 2016-02-08 |
| TWI606476B (en) | 2017-11-21 |
| TW201604908A (en) | 2016-02-01 |
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